Alamy logo

Diaptomus Black & White Stock Photos

(69)See diaptomus stock video clips

Diaptomus Black & White Stock Photos

Cyclops Stock Photo
RMDWX7GK–Cyclops
. Diseases of metabolism and of the blood, animal parasites, toxicology. Constitutional diseases; Metabolism; Blood; Medical parasitology; Poisons. 520 THE ANIMAL PARASITES OF MAN eially in the cyclops serrulatus, Fischer, and diaptomus spinosus, Daday; and since these are frequently found in stagnant waters, the occurrence of the parasite in geese and ducks is quite natural. The crabs, which are often difSeult to recognize, occasionally mi- grate with the drinking-water into the intestiaal canal of man; the cercocyst inhabiting the crabs develops into hy- menolepis lanceolata.. I V r Fig. 46. Stock Photo
RMRE474H–. Diseases of metabolism and of the blood, animal parasites, toxicology. Constitutional diseases; Metabolism; Blood; Medical parasitology; Poisons. 520 THE ANIMAL PARASITES OF MAN eially in the cyclops serrulatus, Fischer, and diaptomus spinosus, Daday; and since these are frequently found in stagnant waters, the occurrence of the parasite in geese and ducks is quite natural. The crabs, which are often difSeult to recognize, occasionally mi- grate with the drinking-water into the intestiaal canal of man; the cercocyst inhabiting the crabs develops into hy- menolepis lanceolata.. I V r Fig. 46.
. Fresh-water biology. Freshwater biology. 30 (29) Lateral spine of second segment of right exopodite of male fifth foot near the proximal end. Diaptomus trybomi Lilljeborg 1889.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ] Stock Photo
RMPFYGT7–. Fresh-water biology. Freshwater biology. 30 (29) Lateral spine of second segment of right exopodite of male fifth foot near the proximal end. Diaptomus trybomi Lilljeborg 1889.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
. The life of inland waters; an elementary text book of fresh-water biology for American students. Freshwater biology. Copepods 189 The species of Diaptomus are remarkable for having usually very long antennas and often a very lively red color. Sometimes they tinge the water with red, when present in large numbers. Copepods feed upon animals plancton and algae, especially diatoms. They are themselves important food for fishes, especially for young fishes. The higher Crustacea, (Malacostraca) are rep- resented in ovir fresh waters by four distinct groups, all of which agree in having the body c Stock Photo
RMRE0CCJ–. The life of inland waters; an elementary text book of fresh-water biology for American students. Freshwater biology. Copepods 189 The species of Diaptomus are remarkable for having usually very long antennas and often a very lively red color. Sometimes they tinge the water with red, when present in large numbers. Copepods feed upon animals plancton and algae, especially diatoms. They are themselves important food for fishes, especially for young fishes. The higher Crustacea, (Malacostraca) are rep- resented in ovir fresh waters by four distinct groups, all of which agree in having the body c
. Fresh-water biology. Freshwater biology. 744 FEESH-WATER BIOLOGY The fifth feet in Cyclops are very rudimentary structures. In Diaptomus the fifth feet take on interesting forms. In the female they are symmetrical, but not so well developed as the preceding swimming feet. But in the male, the right fifth foot differs from the left, and is modified so as to make a grasping organ. The figures in the synoptical key show the form of these appendages. The modifications are constant in a given species, so that the fifth feet in this genus furnish the most important means of specific identification Stock Photo
RMPFYGWC–. Fresh-water biology. Freshwater biology. 744 FEESH-WATER BIOLOGY The fifth feet in Cyclops are very rudimentary structures. In Diaptomus the fifth feet take on interesting forms. In the female they are symmetrical, but not so well developed as the preceding swimming feet. But in the male, the right fifth foot differs from the left, and is modified so as to make a grasping organ. The figures in the synoptical key show the form of these appendages. The modifications are constant in a given species, so that the fifth feet in this genus furnish the most important means of specific identification
. Fresh-water biology. Freshwater biology. 744 FEESH-WATER BIOLOGY The fifth feet in Cyclops are very rudimentary structures. In Diaptomus the fifth feet take on interesting forms. In the female they are symmetrical, but not so well developed as the preceding swimming feet. But in the male, the right fifth foot differs from the left, and is modified so as to make a grasping organ. The figures in the synoptical key show the form of these appendages. The modifications are constant in a given species, so that the fifth feet in this genus furnish the most important means of specific identification Stock Photo
RMRDAEGJ–. Fresh-water biology. Freshwater biology. 744 FEESH-WATER BIOLOGY The fifth feet in Cyclops are very rudimentary structures. In Diaptomus the fifth feet take on interesting forms. In the female they are symmetrical, but not so well developed as the preceding swimming feet. But in the male, the right fifth foot differs from the left, and is modified so as to make a grasping organ. The figures in the synoptical key show the form of these appendages. The modifications are constant in a given species, so that the fifth feet in this genus furnish the most important means of specific identification
. Fresh-water biology. Freshwater biology. 30 (29) Lateral spine of second segment of right exopodite of male fifth foot near the proximal end. Diaptomus trybomi Lilljeborg 1889.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ] Stock Photo
RMPFYGRX–. Fresh-water biology. Freshwater biology. 30 (29) Lateral spine of second segment of right exopodite of male fifth foot near the proximal end. Diaptomus trybomi Lilljeborg 1889.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
. Fresh-water biology. Freshwater biology. 760 FRESH-WATER BIOLOGY 24 (25) Hyaline lamella broad, extending beyond the end of the segment, second basal segment of right exopodite of male fifth foot armed on the posterior surface with small hook. Diaptomus leplopus Forbes 1882. Found generally distributed through the Mississippi Valley, and extending into Canada. The variety piscinae occurs in some of the more northern collections and as far west as Flathead Lake, Montana. This differs from typical leplopus mainly in the greater length of the endopodites of the male fifth feet and in the fact t Stock Photo
RMRDAEFM–. Fresh-water biology. Freshwater biology. 760 FRESH-WATER BIOLOGY 24 (25) Hyaline lamella broad, extending beyond the end of the segment, second basal segment of right exopodite of male fifth foot armed on the posterior surface with small hook. Diaptomus leplopus Forbes 1882. Found generally distributed through the Mississippi Valley, and extending into Canada. The variety piscinae occurs in some of the more northern collections and as far west as Flathead Lake, Montana. This differs from typical leplopus mainly in the greater length of the endopodites of the male fifth feet and in the fact t
. Fresh-water biology. Freshwater biology. 760 FRESH-WATER BIOLOGY 24 (25) Hyaline lamella broad, extending beyond the end of the segment, second basal segment of right exopodite of male fifth foot armed on the posterior surface with small hook. Diaptomus leplopus Forbes 1882. Found generally distributed through the Mississippi Valley, and extending into Canada. The variety piscinae occurs in some of the more northern collections and as far west as Flathead Lake, Montana. This differs from typical leplopus mainly in the greater length of the endopodites of the male fifth feet and in the fact t Stock Photo
RMPFYGTF–. Fresh-water biology. Freshwater biology. 760 FRESH-WATER BIOLOGY 24 (25) Hyaline lamella broad, extending beyond the end of the segment, second basal segment of right exopodite of male fifth foot armed on the posterior surface with small hook. Diaptomus leplopus Forbes 1882. Found generally distributed through the Mississippi Valley, and extending into Canada. The variety piscinae occurs in some of the more northern collections and as far west as Flathead Lake, Montana. This differs from typical leplopus mainly in the greater length of the endopodites of the male fifth feet and in the fact t
. Fresh-water biology. Freshwater biology. Rocky Mountains. Not so widespread or characteristic of the mountain lakes as D. Tyrelli Poppe, although this giant spe- cies is by no means uncommon, and is espe- cially striking because commonly colored a bright red. Length of female, 2.9 mm. Length of male, 2.5 mm. Fig. iigo. Diaptomus shoshone, male. A, fifth feet, X loS. B, terminal segments of right antenna. X 180. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrati Stock Photo
RMRDAEEP–. Fresh-water biology. Freshwater biology. Rocky Mountains. Not so widespread or characteristic of the mountain lakes as D. Tyrelli Poppe, although this giant spe- cies is by no means uncommon, and is espe- cially striking because commonly colored a bright red. Length of female, 2.9 mm. Length of male, 2.5 mm. Fig. iigo. Diaptomus shoshone, male. A, fifth feet, X loS. B, terminal segments of right antenna. X 180. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrati
. Fresh-water biology. Freshwater biology. Rocky Mountains. Not so widespread or characteristic of the mountain lakes as D. Tyrelli Poppe, although this giant spe- cies is by no means uncommon, and is espe- cially striking because commonly colored a bright red. Length of female, 2.9 mm. Length of male, 2.5 mm. Fig. iigo. Diaptomus shoshone, male. A, fifth feet, X loS. B, terminal segments of right antenna. X 180. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrati Stock Photo
RMPFYGRN–. Fresh-water biology. Freshwater biology. Rocky Mountains. Not so widespread or characteristic of the mountain lakes as D. Tyrelli Poppe, although this giant spe- cies is by no means uncommon, and is espe- cially striking because commonly colored a bright red. Length of female, 2.9 mm. Length of male, 2.5 mm. Fig. iigo. Diaptomus shoshone, male. A, fifth feet, X loS. B, terminal segments of right antenna. X 180. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrati
. Fresh-water biology. Freshwater biology. COPEPODA 757 lo (i i) Right and left fifth feet of male nearly equal in length, terminal hook of right foot symmetrical. Diaptomus oregonensis LUljeborg 1889. The most widely distributed of all North Amer- ican species, and the one most likely to be collected in the northern part of the United States. It is found from one side of the continent to the other. The most noticeable characteristic is the equal length of the fifth feet of the male. Length of female, 1.5 mm. Length of male, 1.4 mm. Fig. 1176. Diaptomus oregonensis. .4, fifth feet of male. X 1 Stock Photo
RMRDAEGB–. Fresh-water biology. Freshwater biology. COPEPODA 757 lo (i i) Right and left fifth feet of male nearly equal in length, terminal hook of right foot symmetrical. Diaptomus oregonensis LUljeborg 1889. The most widely distributed of all North Amer- ican species, and the one most likely to be collected in the northern part of the United States. It is found from one side of the continent to the other. The most noticeable characteristic is the equal length of the fifth feet of the male. Length of female, 1.5 mm. Length of male, 1.4 mm. Fig. 1176. Diaptomus oregonensis. .4, fifth feet of male. X 1
. Fresh-water biology. Freshwater biology. COPEPODA 757 lo (i i) Right and left fifth feet of male nearly equal in length, terminal hook of right foot symmetrical. Diaptomus oregonensis LUljeborg 1889. The most widely distributed of all North Amer- ican species, and the one most likely to be collected in the northern part of the United States. It is found from one side of the continent to the other. The most noticeable characteristic is the equal length of the fifth feet of the male. Length of female, 1.5 mm. Length of male, 1.4 mm. Fig. 1176. Diaptomus oregonensis. .4, fifth feet of male. X 1 Stock Photo
RMPFYGW2–. Fresh-water biology. Freshwater biology. COPEPODA 757 lo (i i) Right and left fifth feet of male nearly equal in length, terminal hook of right foot symmetrical. Diaptomus oregonensis LUljeborg 1889. The most widely distributed of all North Amer- ican species, and the one most likely to be collected in the northern part of the United States. It is found from one side of the continent to the other. The most noticeable characteristic is the equal length of the fifth feet of the male. Length of female, 1.5 mm. Length of male, 1.4 mm. Fig. 1176. Diaptomus oregonensis. .4, fifth feet of male. X 1
. Fresh-water biology. Freshwater biology. 442 75 (76) FRESH-WATER BIOLOGY Strobila broad, lancet-shaped. Ovary and vitellarium ante-poral, alongside of testes. Drepanidotaenia Railliet 1892. Scolex very small, with 8 hooks. Neck wanting. No accessory sac in genital atrium. Type species. . Drepanidotaenia lanceolata (Bloch) 1782. Adult in intestine of ducks and geese; cosmopolitan. Bladder-worm in various Cyclopidae and Diaptomus. Fig. 746. Drepanidotaenia lanceolata. Transverse section of proglottid; «, uterus; ut, vitellaria; ov, ovary; /, testes; id, vas deferens; sr, seminal receptacle; v, Stock Photo
RMRDAXG0–. Fresh-water biology. Freshwater biology. 442 75 (76) FRESH-WATER BIOLOGY Strobila broad, lancet-shaped. Ovary and vitellarium ante-poral, alongside of testes. Drepanidotaenia Railliet 1892. Scolex very small, with 8 hooks. Neck wanting. No accessory sac in genital atrium. Type species. . Drepanidotaenia lanceolata (Bloch) 1782. Adult in intestine of ducks and geese; cosmopolitan. Bladder-worm in various Cyclopidae and Diaptomus. Fig. 746. Drepanidotaenia lanceolata. Transverse section of proglottid; «, uterus; ut, vitellaria; ov, ovary; /, testes; id, vas deferens; sr, seminal receptacle; v,
. Fresh-water biology. Freshwater biology. 442 75 (76) FRESH-WATER BIOLOGY Strobila broad, lancet-shaped. Ovary and vitellarium ante-poral, alongside of testes. Drepanidotaenia Railliet 1892. Scolex very small, with 8 hooks. Neck wanting. No accessory sac in genital atrium. Type species. . Drepanidotaenia lanceolata (Bloch) 1782. Adult in intestine of ducks and geese; cosmopolitan. Bladder-worm in various Cyclopidae and Diaptomus. Fig. 746. Drepanidotaenia lanceolata. Transverse section of proglottid; «, uterus; ut, vitellaria; ov, ovary; /, testes; id, vas deferens; sr, seminal receptacle; v, Stock Photo
RMPFYPX8–. Fresh-water biology. Freshwater biology. 442 75 (76) FRESH-WATER BIOLOGY Strobila broad, lancet-shaped. Ovary and vitellarium ante-poral, alongside of testes. Drepanidotaenia Railliet 1892. Scolex very small, with 8 hooks. Neck wanting. No accessory sac in genital atrium. Type species. . Drepanidotaenia lanceolata (Bloch) 1782. Adult in intestine of ducks and geese; cosmopolitan. Bladder-worm in various Cyclopidae and Diaptomus. Fig. 746. Drepanidotaenia lanceolata. Transverse section of proglottid; «, uterus; ut, vitellaria; ov, ovary; /, testes; id, vas deferens; sr, seminal receptacle; v,
. Fresh-water biology. Freshwater biology. 21 (20) A second hyaline appendage on dorsal side of distal margin of first segment of right exopodite, lateral spine of second segment of right exopodite strongly curved, and a blunt spine on posterior surface of this segment. Diaptomus coloradensis Marsh 1911. In the Rocky Mountains in Colorado D. tyrelli is replaced by this closely allied species which is, apparently, the characteristic species of the moun- tain lakes of Colorado. Length of female, 1.38 mm. Length of male, 1.32 mm. Fig. 11S2. "FiiXhifxtoiixidXa DiaptDltms coloradensis. X 120. Stock Photo
RMRDAEFT–. Fresh-water biology. Freshwater biology. 21 (20) A second hyaline appendage on dorsal side of distal margin of first segment of right exopodite, lateral spine of second segment of right exopodite strongly curved, and a blunt spine on posterior surface of this segment. Diaptomus coloradensis Marsh 1911. In the Rocky Mountains in Colorado D. tyrelli is replaced by this closely allied species which is, apparently, the characteristic species of the moun- tain lakes of Colorado. Length of female, 1.38 mm. Length of male, 1.32 mm. Fig. 11S2. "FiiXhifxtoiixidXa DiaptDltms coloradensis. X 120.
. Fresh-water biology. Freshwater biology. COPEPODA 763 34 (33) Right endopodite of male fifth foot exceeds length of first segment of exopodite, spines of first basal segments small. Diaptomus sicilis Forbes 1882. Found in the Great Lakes, being the most abundant form taken in limnetic collections; found to some extent in other lakes in the same general region. It is, as a rule, confined to the larger and deeper lakes. It is frequently found asso- ciated with D. minutus but is read- ily distinguished by the slender, symmetrical, sickle-shaped hook terminating the exopodite of the right iifth Stock Photo
RMPFYGT3–. Fresh-water biology. Freshwater biology. COPEPODA 763 34 (33) Right endopodite of male fifth foot exceeds length of first segment of exopodite, spines of first basal segments small. Diaptomus sicilis Forbes 1882. Found in the Great Lakes, being the most abundant form taken in limnetic collections; found to some extent in other lakes in the same general region. It is, as a rule, confined to the larger and deeper lakes. It is frequently found asso- ciated with D. minutus but is read- ily distinguished by the slender, symmetrical, sickle-shaped hook terminating the exopodite of the right iifth
. Fresh-water biology. Freshwater biology. Fig. 1186. Diaptomus trybomi. .4, abdomen of female. X 70. S, fifth feet of male. X 120. C, terminal segments of right antenna of male. X 100. (After De Gueme and Richard.) The antennal process is dentate on the outer margin and the abdomen of the female asym- metrical. Has been found only in Oregon. Length of female, 1.5 mm. Length of male, 1.4 mm.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the Stock Photo
RMRDAEF6–. Fresh-water biology. Freshwater biology. Fig. 1186. Diaptomus trybomi. .4, abdomen of female. X 70. S, fifth feet of male. X 120. C, terminal segments of right antenna of male. X 100. (After De Gueme and Richard.) The antennal process is dentate on the outer margin and the abdomen of the female asym- metrical. Has been found only in Oregon. Length of female, 1.5 mm. Length of male, 1.4 mm.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the
. Fresh-water biology. Freshwater biology. Fig. 1186. Diaptomus trybomi. .4, abdomen of female. X 70. S, fifth feet of male. X 120. C, terminal segments of right antenna of male. X 100. (After De Gueme and Richard.) The antennal process is dentate on the outer margin and the abdomen of the female asym- metrical. Has been found only in Oregon. Length of female, 1.5 mm. Length of male, 1.4 mm.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the Stock Photo
RMPFYGT4–. Fresh-water biology. Freshwater biology. Fig. 1186. Diaptomus trybomi. .4, abdomen of female. X 70. S, fifth feet of male. X 120. C, terminal segments of right antenna of male. X 100. (After De Gueme and Richard.) The antennal process is dentate on the outer margin and the abdomen of the female asym- metrical. Has been found only in Oregon. Length of female, 1.5 mm. Length of male, 1.4 mm.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the
. Fresh-water biology. Freshwater biology. COPEPODA 763 34 (33) Right endopodite of male fifth foot exceeds length of first segment of exopodite, spines of first basal segments small. Diaptomus sicilis Forbes 1882. Found in the Great Lakes, being the most abundant form taken in limnetic collections; found to some extent in other lakes in the same general region. It is, as a rule, confined to the larger and deeper lakes. It is frequently found asso- ciated with D. minutus but is read- ily distinguished by the slender, symmetrical, sickle-shaped hook terminating the exopodite of the right iifth Stock Photo
RMRDAEF0–. Fresh-water biology. Freshwater biology. COPEPODA 763 34 (33) Right endopodite of male fifth foot exceeds length of first segment of exopodite, spines of first basal segments small. Diaptomus sicilis Forbes 1882. Found in the Great Lakes, being the most abundant form taken in limnetic collections; found to some extent in other lakes in the same general region. It is, as a rule, confined to the larger and deeper lakes. It is frequently found asso- ciated with D. minutus but is read- ily distinguished by the slender, symmetrical, sickle-shaped hook terminating the exopodite of the right iifth
. Fresh-water biology. Freshwater biology. 21 (20) A second hyaline appendage on dorsal side of distal margin of first segment of right exopodite, lateral spine of second segment of right exopodite strongly curved, and a blunt spine on posterior surface of this segment. Diaptomus coloradensis Marsh 1911. In the Rocky Mountains in Colorado D. tyrelli is replaced by this closely allied species which is, apparently, the characteristic species of the moun- tain lakes of Colorado. Length of female, 1.38 mm. Length of male, 1.32 mm. Fig. 11S2. "FiiXhifxtoiixidXa DiaptDltms coloradensis. X 120. Stock Photo
RMPFYGTM–. Fresh-water biology. Freshwater biology. 21 (20) A second hyaline appendage on dorsal side of distal margin of first segment of right exopodite, lateral spine of second segment of right exopodite strongly curved, and a blunt spine on posterior surface of this segment. Diaptomus coloradensis Marsh 1911. In the Rocky Mountains in Colorado D. tyrelli is replaced by this closely allied species which is, apparently, the characteristic species of the moun- tain lakes of Colorado. Length of female, 1.38 mm. Length of male, 1.32 mm. Fig. 11S2. "FiiXhifxtoiixidXa DiaptDltms coloradensis. X 120.
. Fresh-water biology. Freshwater biology. COPEPODA 771 63 (48, 56) Right endopodite of fifth foot of male equals or only slightly ex- ceeds first segment of exopodite 64 64 (65) Terminal segment of right exopodite of male fifth foot has oblique ridge on posterior surface, lateral spine exceeds segment in length Diaptomus albuquerquensis Henick 1895.. The fifth cephalothoradc segment of the female has a dorsal process, and the endopodites of the fifth feet are commonly two-segmented. Found in New Mexico and Colorado. As the name indi- cates, this form was originally described by Her- rick, fro Stock Photo
RMRDA3D7–. Fresh-water biology. Freshwater biology. COPEPODA 771 63 (48, 56) Right endopodite of fifth foot of male equals or only slightly ex- ceeds first segment of exopodite 64 64 (65) Terminal segment of right exopodite of male fifth foot has oblique ridge on posterior surface, lateral spine exceeds segment in length Diaptomus albuquerquensis Henick 1895.. The fifth cephalothoradc segment of the female has a dorsal process, and the endopodites of the fifth feet are commonly two-segmented. Found in New Mexico and Colorado. As the name indi- cates, this form was originally described by Her- rick, fro
. Fresh-water biology. Freshwater biology. COPEPODA 771 63 (48, 56) Right endopodite of fifth foot of male equals or only slightly ex- ceeds first segment of exopodite 64 64 (65) Terminal segment of right exopodite of male fifth foot has oblique ridge on posterior surface, lateral spine exceeds segment in length Diaptomus albuquerquensis Henick 1895.. The fifth cephalothoradc segment of the female has a dorsal process, and the endopodites of the fifth feet are commonly two-segmented. Found in New Mexico and Colorado. As the name indi- cates, this form was originally described by Her- rick, fro Stock Photo
RMPFYGR3–. Fresh-water biology. Freshwater biology. COPEPODA 771 63 (48, 56) Right endopodite of fifth foot of male equals or only slightly ex- ceeds first segment of exopodite 64 64 (65) Terminal segment of right exopodite of male fifth foot has oblique ridge on posterior surface, lateral spine exceeds segment in length Diaptomus albuquerquensis Henick 1895.. The fifth cephalothoradc segment of the female has a dorsal process, and the endopodites of the fifth feet are commonly two-segmented. Found in New Mexico and Colorado. As the name indi- cates, this form was originally described by Her- rick, fro
. Fresh-water biology. Freshwater biology. COPEPODA 773 70 (67) First segment of right exopodite of male fifth foot has hyaline appendage 71 71 (72) Hyaline appendage of first segment of exopodite of male fifth foot at inner distal angle, endopodite of right foot about equals first segment of exopodite. Diaptomus signicauda Lilljeborg 1889.. Fig. 1209. Diaptomus signicauda. ^.abdomen of female. X iiB. B, fifth feet of male. X 174- (Original.) The first segment of the abdomen of the female has a digitiform process on the right posterior border. Found in mountain regions of western United States Stock Photo
RMRDA3D3–. Fresh-water biology. Freshwater biology. COPEPODA 773 70 (67) First segment of right exopodite of male fifth foot has hyaline appendage 71 71 (72) Hyaline appendage of first segment of exopodite of male fifth foot at inner distal angle, endopodite of right foot about equals first segment of exopodite. Diaptomus signicauda Lilljeborg 1889.. Fig. 1209. Diaptomus signicauda. ^.abdomen of female. X iiB. B, fifth feet of male. X 174- (Original.) The first segment of the abdomen of the female has a digitiform process on the right posterior border. Found in mountain regions of western United States
. Fresh-water biology. Freshwater biology. The fifth cephalothoradc segment of the female has a dorsal process, and the endopodites of the fifth feet are commonly two-segmented. Found in New Mexico and Colorado. As the name indi- cates, this form was originally described by Her- rick, from material collected in Albuquerque, N. M. It is found, however, from Colorado to the City of Mexico, and seems to be a typical form of the Southwest. Length of female, 1.76 mm. Length of male, i.j8 mm. Fig. 1205. Diaptomus albuquerquensis. M, dor- sal processof female. X 180. B, fifth feet of male. X 49. (Ori Stock Photo
RMPFYGPW–. Fresh-water biology. Freshwater biology. The fifth cephalothoradc segment of the female has a dorsal process, and the endopodites of the fifth feet are commonly two-segmented. Found in New Mexico and Colorado. As the name indi- cates, this form was originally described by Her- rick, from material collected in Albuquerque, N. M. It is found, however, from Colorado to the City of Mexico, and seems to be a typical form of the Southwest. Length of female, 1.76 mm. Length of male, i.j8 mm. Fig. 1205. Diaptomus albuquerquensis. M, dor- sal processof female. X 180. B, fifth feet of male. X 49. (Ori
. Fresh-water biology. Freshwater biology. Fig. 1199. Diaptomus stagnalis. B, fifth feet of male. SS (54) I1 male, segments of right fifth foot short and broad, terminal hook long and strongly curved, lateral spine long and straight; in female, dorsal process on fifth cephalothoracic segment, endopodites of fifth feet short and one-segmented. Diaptomus saltillinus Brewer 1898. Found in Nebraska. Length of female, i.j mm. Length of male, 1.25 mm.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearanc Stock Photo
RMRDA3DA–. Fresh-water biology. Freshwater biology. Fig. 1199. Diaptomus stagnalis. B, fifth feet of male. SS (54) I1 male, segments of right fifth foot short and broad, terminal hook long and strongly curved, lateral spine long and straight; in female, dorsal process on fifth cephalothoracic segment, endopodites of fifth feet short and one-segmented. Diaptomus saltillinus Brewer 1898. Found in Nebraska. Length of female, i.j mm. Length of male, 1.25 mm.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearanc
. Fresh-water biology. Freshwater biology. COPEPODA 773 70 (67) First segment of right exopodite of male fifth foot has hyaline appendage 71 71 (72) Hyaline appendage of first segment of exopodite of male fifth foot at inner distal angle, endopodite of right foot about equals first segment of exopodite. Diaptomus signicauda Lilljeborg 1889.. Fig. 1209. Diaptomus signicauda. ^.abdomen of female. X iiB. B, fifth feet of male. X 174- (Original.) The first segment of the abdomen of the female has a digitiform process on the right posterior border. Found in mountain regions of western United States Stock Photo
RMPFYGPR–. Fresh-water biology. Freshwater biology. COPEPODA 773 70 (67) First segment of right exopodite of male fifth foot has hyaline appendage 71 71 (72) Hyaline appendage of first segment of exopodite of male fifth foot at inner distal angle, endopodite of right foot about equals first segment of exopodite. Diaptomus signicauda Lilljeborg 1889.. Fig. 1209. Diaptomus signicauda. ^.abdomen of female. X iiB. B, fifth feet of male. X 174- (Original.) The first segment of the abdomen of the female has a digitiform process on the right posterior border. Found in mountain regions of western United States
. Fresh-water biology. Freshwater biology. The fifth cephalothoradc segment of the female has a dorsal process, and the endopodites of the fifth feet are commonly two-segmented. Found in New Mexico and Colorado. As the name indi- cates, this form was originally described by Her- rick, from material collected in Albuquerque, N. M. It is found, however, from Colorado to the City of Mexico, and seems to be a typical form of the Southwest. Length of female, 1.76 mm. Length of male, i.j8 mm. Fig. 1205. Diaptomus albuquerquensis. M, dor- sal processof female. X 180. B, fifth feet of male. X 49. (Ori Stock Photo
RMRDA3D6–. Fresh-water biology. Freshwater biology. The fifth cephalothoradc segment of the female has a dorsal process, and the endopodites of the fifth feet are commonly two-segmented. Found in New Mexico and Colorado. As the name indi- cates, this form was originally described by Her- rick, from material collected in Albuquerque, N. M. It is found, however, from Colorado to the City of Mexico, and seems to be a typical form of the Southwest. Length of female, 1.76 mm. Length of male, i.j8 mm. Fig. 1205. Diaptomus albuquerquensis. M, dor- sal processof female. X 180. B, fifth feet of male. X 49. (Ori
. Fresh-water biology. Freshwater biology. Has been found only in California and Nebraska. Length of female, 4 mm. Length of male, 3.5 mm. Fig. 1194. Diaptomus eiseni, male. A, fifth feet. X 38. B, terminal segments of right antenna. X 133. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [e Stock Photo
RMPFYGRF–. Fresh-water biology. Freshwater biology. Has been found only in California and Nebraska. Length of female, 4 mm. Length of male, 3.5 mm. Fig. 1194. Diaptomus eiseni, male. A, fifth feet. X 38. B, terminal segments of right antenna. X 133. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [e
. Fresh-water biology. Freshwater biology. Washington. Length of female, 2.9 mm. Length of male, 1.6 mm. Fig. 1191. Diaptomus wardi, male. A XI73. XII2. uiapiomus warai, male. A, fifth feet. B, terminal segments of right antenna. (After Pearse.) 39 (36) Small. Lateral spine of second segment of right exopodite of male on proximal half of segment, antennae reach beyond furca. . . 40 40 (41) Lateral spine of second segment of right exopodite of male fifth foot short, right endopodite rudimentary, endopodites of female fifth feet rudimentary. Diaptomus minutus Lilljeborg 1889.. Northern United St Stock Photo
RMRDA3E0–. Fresh-water biology. Freshwater biology. Washington. Length of female, 2.9 mm. Length of male, 1.6 mm. Fig. 1191. Diaptomus wardi, male. A XI73. XII2. uiapiomus warai, male. A, fifth feet. B, terminal segments of right antenna. (After Pearse.) 39 (36) Small. Lateral spine of second segment of right exopodite of male on proximal half of segment, antennae reach beyond furca. . . 40 40 (41) Lateral spine of second segment of right exopodite of male fifth foot short, right endopodite rudimentary, endopodites of female fifth feet rudimentary. Diaptomus minutus Lilljeborg 1889.. Northern United St
. Fresh-water biology. Freshwater biology. Fig. 1199. Diaptomus stagnalis. B, fifth feet of male. SS (54) I1 male, segments of right fifth foot short and broad, terminal hook long and strongly curved, lateral spine long and straight; in female, dorsal process on fifth cephalothoracic segment, endopodites of fifth feet short and one-segmented. Diaptomus saltillinus Brewer 1898. Found in Nebraska. Length of female, i.j mm. Length of male, 1.25 mm.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearanc Stock Photo
RMPFYGR5–. Fresh-water biology. Freshwater biology. Fig. 1199. Diaptomus stagnalis. B, fifth feet of male. SS (54) I1 male, segments of right fifth foot short and broad, terminal hook long and strongly curved, lateral spine long and straight; in female, dorsal process on fifth cephalothoracic segment, endopodites of fifth feet short and one-segmented. Diaptomus saltillinus Brewer 1898. Found in Nebraska. Length of female, i.j mm. Length of male, 1.25 mm.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearanc
. Fresh-water biology. Freshwater biology. 7S8 FRESH-WATER BIOLOGY 15 (12) Left fifth foot of male, reaching end of first segment of right exopo- dite, or only shghtly exceeding it 16 16 (17) Antepenultimate segment of right antenna of male produced at distal end into a blunt point, first segment of right exopo- dite of fifth foot with marked quadrangular hyaline appen- dage Diaptomus birgei Marsh 1894.. Fig. 1179. Diaptomushtrgei,rQ2X&. ^, terminal segment of right antenna. X 191. B, fifth feet. X 109. (Original.) Common in Indiana and has been found in Wisconsin and on Long Island. Lengt Stock Photo
RMRDAEG7–. Fresh-water biology. Freshwater biology. 7S8 FRESH-WATER BIOLOGY 15 (12) Left fifth foot of male, reaching end of first segment of right exopo- dite, or only shghtly exceeding it 16 16 (17) Antepenultimate segment of right antenna of male produced at distal end into a blunt point, first segment of right exopo- dite of fifth foot with marked quadrangular hyaline appen- dage Diaptomus birgei Marsh 1894.. Fig. 1179. Diaptomushtrgei,rQ2X&. ^, terminal segment of right antenna. X 191. B, fifth feet. X 109. (Original.) Common in Indiana and has been found in Wisconsin and on Long Island. Lengt
. Fresh-water biology. Freshwater biology. 762 FRESH-WATER BIOLOGY 31 (28) Right endopodite of male fifth foot about equal in length to first segment of exopodite. . Diaptomus jiidayi Marsh 1907.. Fig. 1187. Diaptomus jitdayi. A, terminal segments of right antenna of male. X 290. B, fifth feet of male. X 145. C, abdomen of female. X 165. (Original.) Lateral spine of the second segment of the right exopodite is median, first segment of the female abdomen has a process on the posterior margin on the right side. Has been found only in the mountains of Colorado. Length of female, o.gs mm. Length o Stock Photo
RMPFYGT5–. Fresh-water biology. Freshwater biology. 762 FRESH-WATER BIOLOGY 31 (28) Right endopodite of male fifth foot about equal in length to first segment of exopodite. . Diaptomus jiidayi Marsh 1907.. Fig. 1187. Diaptomus jitdayi. A, terminal segments of right antenna of male. X 290. B, fifth feet of male. X 145. C, abdomen of female. X 165. (Original.) Lateral spine of the second segment of the right exopodite is median, first segment of the female abdomen has a process on the posterior margin on the right side. Has been found only in the mountains of Colorado. Length of female, o.gs mm. Length o
. Fresh-water biology. Freshwater biology. COPEPODA 767 51 (so, 52) Terminal segment of right exopodite of fifth foot of male much broader at distal end, lateral spine nearly terminal and straight, left endopodite elongate. Diaptomiis conipedalus Marsh 1907.. Found in Louisiana. Length of female, 1.4Q mm. Length of male, 1.325 mm. Fig. 1197. Diaptomus conipedatus, male. ^, fifth feet. X 126. 5, terminal segments of right antenna. X 193. (Original.) 52 (so, 51) Terminal hook of right exopodite of fifth foot of male falciform, lateral spine at distal third of segment, second basal seg- ment of r Stock Photo
RMRDA3DH–. Fresh-water biology. Freshwater biology. COPEPODA 767 51 (so, 52) Terminal segment of right exopodite of fifth foot of male much broader at distal end, lateral spine nearly terminal and straight, left endopodite elongate. Diaptomiis conipedalus Marsh 1907.. Found in Louisiana. Length of female, 1.4Q mm. Length of male, 1.325 mm. Fig. 1197. Diaptomus conipedatus, male. ^, fifth feet. X 126. 5, terminal segments of right antenna. X 193. (Original.) 52 (so, 51) Terminal hook of right exopodite of fifth foot of male falciform, lateral spine at distal third of segment, second basal seg- ment of r
. Fresh-water biology. Freshwater biology. COPEPODA 767 51 (so, 52) Terminal segment of right exopodite of fifth foot of male much broader at distal end, lateral spine nearly terminal and straight, left endopodite elongate. Diaptomiis conipedalus Marsh 1907.. Found in Louisiana. Length of female, 1.4Q mm. Length of male, 1.325 mm. Fig. 1197. Diaptomus conipedatus, male. ^, fifth feet. X 126. 5, terminal segments of right antenna. X 193. (Original.) 52 (so, 51) Terminal hook of right exopodite of fifth foot of male falciform, lateral spine at distal third of segment, second basal seg- ment of r Stock Photo
RMPFYGRD–. Fresh-water biology. Freshwater biology. COPEPODA 767 51 (so, 52) Terminal segment of right exopodite of fifth foot of male much broader at distal end, lateral spine nearly terminal and straight, left endopodite elongate. Diaptomiis conipedalus Marsh 1907.. Found in Louisiana. Length of female, 1.4Q mm. Length of male, 1.325 mm. Fig. 1197. Diaptomus conipedatus, male. ^, fifth feet. X 126. 5, terminal segments of right antenna. X 193. (Original.) 52 (so, 51) Terminal hook of right exopodite of fifth foot of male falciform, lateral spine at distal third of segment, second basal seg- ment of r
. Fresh-water biology. Freshwater biology. Fig. 1179. Diaptomushtrgei,rQ2X&. ^, terminal segment of right antenna. X 191. B, fifth feet. X 109. (Original.) Common in Indiana and has been found in Wisconsin and on Long Island. Length of female, 1.3 mm. Length of male, 1.2 mm. 17 (16) Antepenultimate segment of right antenna of male not produced into blunt point on distal end 18 18 (19) Inner process of the terminal segment of exopodite of left male fifth foot falciform, no hyaline appendage of first segment of right exopodite Diaptomus pallidus Herrick 1879.. Occurs in Mississippi Valley, a Stock Photo
RMRDAEG1–. Fresh-water biology. Freshwater biology. Fig. 1179. Diaptomushtrgei,rQ2X&. ^, terminal segment of right antenna. X 191. B, fifth feet. X 109. (Original.) Common in Indiana and has been found in Wisconsin and on Long Island. Length of female, 1.3 mm. Length of male, 1.2 mm. 17 (16) Antepenultimate segment of right antenna of male not produced into blunt point on distal end 18 18 (19) Inner process of the terminal segment of exopodite of left male fifth foot falciform, no hyaline appendage of first segment of right exopodite Diaptomus pallidus Herrick 1879.. Occurs in Mississippi Valley, a
. Fresh-water biology. Freshwater biology. 25 (24) Hyaline lamella narrow, extending beyond the end of the segment slightly, if at all; first basal segment of right fifth foot of male armed with hook equal in length to first segment of exopodite Diaptomus clavipes Schacht 1897. Has been found in three locali- ties, in West Okoboji Lake, Iowa, near Lincoln, Nebraska, and at Greeley, Colorado. Length of female from 1.37 to 2-5 nun. Fig. 1184. Diaptomus clavipes, male. A, fifth feet. X 83. B, terminal segments of right antenna. X 141. Original.). 26 (23, 42) Antepenultimate segment of right anten Stock Photo
RMPFYGTD–. Fresh-water biology. Freshwater biology. 25 (24) Hyaline lamella narrow, extending beyond the end of the segment slightly, if at all; first basal segment of right fifth foot of male armed with hook equal in length to first segment of exopodite Diaptomus clavipes Schacht 1897. Has been found in three locali- ties, in West Okoboji Lake, Iowa, near Lincoln, Nebraska, and at Greeley, Colorado. Length of female from 1.37 to 2-5 nun. Fig. 1184. Diaptomus clavipes, male. A, fifth feet. X 83. B, terminal segments of right antenna. X 141. Original.). 26 (23, 42) Antepenultimate segment of right anten
. Fresh-water biology. Freshwater biology. 770 FRESH-WATER BIOLOGY 60 (57) Second segment of right exopodite of fifth foot of male does not have oblique ridge on posterior surface 61 61 (62) Lateral spine of terminal segment of right exopodite of male fifth foot terminal, endopodites distinctly two-segmented. Diaptomus bakeri Marsh 1907. In the female fifth foot the exopodites are distinctly three-segmented, the endopodites distinctly two-segmented. Found in Cali- fornia. Length of female, 1.27 mm. Length of male, 1.124 mm. Fig. 1203. Diaptomus hakeri. ^, fifth feet of male. X no. 5, fifth foo Stock Photo
RMRDA3D8–. Fresh-water biology. Freshwater biology. 770 FRESH-WATER BIOLOGY 60 (57) Second segment of right exopodite of fifth foot of male does not have oblique ridge on posterior surface 61 61 (62) Lateral spine of terminal segment of right exopodite of male fifth foot terminal, endopodites distinctly two-segmented. Diaptomus bakeri Marsh 1907. In the female fifth foot the exopodites are distinctly three-segmented, the endopodites distinctly two-segmented. Found in Cali- fornia. Length of female, 1.27 mm. Length of male, 1.124 mm. Fig. 1203. Diaptomus hakeri. ^, fifth feet of male. X no. 5, fifth foo
. Fresh-water biology. Freshwater biology. 768 FRESH-WATER BIOLOGY 53 (49) Terminal segment of right exopodite of male fifth feet of usual length, lateral spine terminal 54 54 (55) Inner surface of left endopodite of male fifth foot rugose, terminal spines of endopodites of female fifth feet very long. Diaptomus stagnalis Forbes 1882. A very large species found in the Mississippi Valley in the spring. Length of female, 4 to 4.5 mm. Length of male, 3.3 to 4 mm. A, fifth foot of female. (After Forbes.) (After Herrick and Turner.). Please note that these images are extracted from scanned page ima Stock Photo
RMPFYGR9–. Fresh-water biology. Freshwater biology. 768 FRESH-WATER BIOLOGY 53 (49) Terminal segment of right exopodite of male fifth feet of usual length, lateral spine terminal 54 54 (55) Inner surface of left endopodite of male fifth foot rugose, terminal spines of endopodites of female fifth feet very long. Diaptomus stagnalis Forbes 1882. A very large species found in the Mississippi Valley in the spring. Length of female, 4 to 4.5 mm. Length of male, 3.3 to 4 mm. A, fifth foot of female. (After Forbes.) (After Herrick and Turner.). Please note that these images are extracted from scanned page ima
. Fresh-water biology. Freshwater biology. 768 FRESH-WATER BIOLOGY 53 (49) Terminal segment of right exopodite of male fifth feet of usual length, lateral spine terminal 54 54 (55) Inner surface of left endopodite of male fifth foot rugose, terminal spines of endopodites of female fifth feet very long. Diaptomus stagnalis Forbes 1882. A very large species found in the Mississippi Valley in the spring. Length of female, 4 to 4.5 mm. Length of male, 3.3 to 4 mm. A, fifth foot of female. (After Forbes.) (After Herrick and Turner.). Please note that these images are extracted from scanned page ima Stock Photo
RMRDA3DC–. Fresh-water biology. Freshwater biology. 768 FRESH-WATER BIOLOGY 53 (49) Terminal segment of right exopodite of male fifth feet of usual length, lateral spine terminal 54 54 (55) Inner surface of left endopodite of male fifth foot rugose, terminal spines of endopodites of female fifth feet very long. Diaptomus stagnalis Forbes 1882. A very large species found in the Mississippi Valley in the spring. Length of female, 4 to 4.5 mm. Length of male, 3.3 to 4 mm. A, fifth foot of female. (After Forbes.) (After Herrick and Turner.). Please note that these images are extracted from scanned page ima
. Fresh-water biology. Freshwater biology. Washington. Length of female, 2.9 mm. Length of male, 1.6 mm. Fig. 1191. Diaptomus wardi, male. A XI73. XII2. uiapiomus warai, male. A, fifth feet. B, terminal segments of right antenna. (After Pearse.) 39 (36) Small. Lateral spine of second segment of right exopodite of male on proximal half of segment, antennae reach beyond furca. . . 40 40 (41) Lateral spine of second segment of right exopodite of male fifth foot short, right endopodite rudimentary, endopodites of female fifth feet rudimentary. Diaptomus minutus Lilljeborg 1889.. Northern United St Stock Photo
RMPFYGRJ–. Fresh-water biology. Freshwater biology. Washington. Length of female, 2.9 mm. Length of male, 1.6 mm. Fig. 1191. Diaptomus wardi, male. A XI73. XII2. uiapiomus warai, male. A, fifth feet. B, terminal segments of right antenna. (After Pearse.) 39 (36) Small. Lateral spine of second segment of right exopodite of male on proximal half of segment, antennae reach beyond furca. . . 40 40 (41) Lateral spine of second segment of right exopodite of male fifth foot short, right endopodite rudimentary, endopodites of female fifth feet rudimentary. Diaptomus minutus Lilljeborg 1889.. Northern United St
. Fresh-water biology. Freshwater biology. 762 FRESH-WATER BIOLOGY 31 (28) Right endopodite of male fifth foot about equal in length to first segment of exopodite. . Diaptomus jiidayi Marsh 1907.. Fig. 1187. Diaptomus jitdayi. A, terminal segments of right antenna of male. X 290. B, fifth feet of male. X 145. C, abdomen of female. X 165. (Original.) Lateral spine of the second segment of the right exopodite is median, first segment of the female abdomen has a process on the posterior margin on the right side. Has been found only in the mountains of Colorado. Length of female, o.gs mm. Length o Stock Photo
RMRDAEF3–. Fresh-water biology. Freshwater biology. 762 FRESH-WATER BIOLOGY 31 (28) Right endopodite of male fifth foot about equal in length to first segment of exopodite. . Diaptomus jiidayi Marsh 1907.. Fig. 1187. Diaptomus jitdayi. A, terminal segments of right antenna of male. X 290. B, fifth feet of male. X 145. C, abdomen of female. X 165. (Original.) Lateral spine of the second segment of the right exopodite is median, first segment of the female abdomen has a process on the posterior margin on the right side. Has been found only in the mountains of Colorado. Length of female, o.gs mm. Length o
. Fresh-water biology. Freshwater biology. Fig. 1179. Diaptomushtrgei,rQ2X&. ^, terminal segment of right antenna. X 191. B, fifth feet. X 109. (Original.) Common in Indiana and has been found in Wisconsin and on Long Island. Length of female, 1.3 mm. Length of male, 1.2 mm. 17 (16) Antepenultimate segment of right antenna of male not produced into blunt point on distal end 18 18 (19) Inner process of the terminal segment of exopodite of left male fifth foot falciform, no hyaline appendage of first segment of right exopodite Diaptomus pallidus Herrick 1879.. Occurs in Mississippi Valley, a Stock Photo
RMPFYGTW–. Fresh-water biology. Freshwater biology. Fig. 1179. Diaptomushtrgei,rQ2X&. ^, terminal segment of right antenna. X 191. B, fifth feet. X 109. (Original.) Common in Indiana and has been found in Wisconsin and on Long Island. Length of female, 1.3 mm. Length of male, 1.2 mm. 17 (16) Antepenultimate segment of right antenna of male not produced into blunt point on distal end 18 18 (19) Inner process of the terminal segment of exopodite of left male fifth foot falciform, no hyaline appendage of first segment of right exopodite Diaptomus pallidus Herrick 1879.. Occurs in Mississippi Valley, a
. Fresh-water biology. Freshwater biology. 25 (24) Hyaline lamella narrow, extending beyond the end of the segment slightly, if at all; first basal segment of right fifth foot of male armed with hook equal in length to first segment of exopodite Diaptomus clavipes Schacht 1897. Has been found in three locali- ties, in West Okoboji Lake, Iowa, near Lincoln, Nebraska, and at Greeley, Colorado. Length of female from 1.37 to 2-5 nun. Fig. 1184. Diaptomus clavipes, male. A, fifth feet. X 83. B, terminal segments of right antenna. X 141. Original.). 26 (23, 42) Antepenultimate segment of right anten Stock Photo
RMRDAEFJ–. Fresh-water biology. Freshwater biology. 25 (24) Hyaline lamella narrow, extending beyond the end of the segment slightly, if at all; first basal segment of right fifth foot of male armed with hook equal in length to first segment of exopodite Diaptomus clavipes Schacht 1897. Has been found in three locali- ties, in West Okoboji Lake, Iowa, near Lincoln, Nebraska, and at Greeley, Colorado. Length of female from 1.37 to 2-5 nun. Fig. 1184. Diaptomus clavipes, male. A, fifth feet. X 83. B, terminal segments of right antenna. X 141. Original.). 26 (23, 42) Antepenultimate segment of right anten
. Fresh-water biology. Freshwater biology. COPEPODA 76s 41 (40) Lateral spine of second segment of right exopodite of male fifth foot long, right endopodite equals in length first segment of exopodite Diaptomus ashlandi Marsh 1893. Found in the Great Lakes and some lakes immediately connected with them and west to the State of Washington. Length of female, o.g7 mm. Length of male, o.8g mm. Fig. 1193. Diaptomus ashlandi, male. A, fifth feet. X 14S. B, terminal segments of right antenna. X 14S- (Original.) 42 (23, 26) Antepenultimate segment of right antenna of male bears curved process 43 43 (4 Stock Photo
RMPFYGRH–. Fresh-water biology. Freshwater biology. COPEPODA 76s 41 (40) Lateral spine of second segment of right exopodite of male fifth foot long, right endopodite equals in length first segment of exopodite Diaptomus ashlandi Marsh 1893. Found in the Great Lakes and some lakes immediately connected with them and west to the State of Washington. Length of female, o.g7 mm. Length of male, o.8g mm. Fig. 1193. Diaptomus ashlandi, male. A, fifth feet. X 14S. B, terminal segments of right antenna. X 14S- (Original.) 42 (23, 26) Antepenultimate segment of right antenna of male bears curved process 43 43 (4
. Fresh-water biology. Freshwater biology. COPEPODA 76s 41 (40) Lateral spine of second segment of right exopodite of male fifth foot long, right endopodite equals in length first segment of exopodite Diaptomus ashlandi Marsh 1893. Found in the Great Lakes and some lakes immediately connected with them and west to the State of Washington. Length of female, o.g7 mm. Length of male, o.8g mm. Fig. 1193. Diaptomus ashlandi, male. A, fifth feet. X 14S. B, terminal segments of right antenna. X 14S- (Original.) 42 (23, 26) Antepenultimate segment of right antenna of male bears curved process 43 43 (4 Stock Photo
RMRDA3DT–. Fresh-water biology. Freshwater biology. COPEPODA 76s 41 (40) Lateral spine of second segment of right exopodite of male fifth foot long, right endopodite equals in length first segment of exopodite Diaptomus ashlandi Marsh 1893. Found in the Great Lakes and some lakes immediately connected with them and west to the State of Washington. Length of female, o.g7 mm. Length of male, o.8g mm. Fig. 1193. Diaptomus ashlandi, male. A, fifth feet. X 14S. B, terminal segments of right antenna. X 14S- (Original.) 42 (23, 26) Antepenultimate segment of right antenna of male bears curved process 43 43 (4
. Fresh-water biology. Freshwater biology. 7S8 FRESH-WATER BIOLOGY 15 (12) Left fifth foot of male, reaching end of first segment of right exopo- dite, or only shghtly exceeding it 16 16 (17) Antepenultimate segment of right antenna of male produced at distal end into a blunt point, first segment of right exopo- dite of fifth foot with marked quadrangular hyaline appen- dage Diaptomus birgei Marsh 1894.. Fig. 1179. Diaptomushtrgei,rQ2X&. ^, terminal segment of right antenna. X 191. B, fifth feet. X 109. (Original.) Common in Indiana and has been found in Wisconsin and on Long Island. Lengt Stock Photo
RMPFYGW0–. Fresh-water biology. Freshwater biology. 7S8 FRESH-WATER BIOLOGY 15 (12) Left fifth foot of male, reaching end of first segment of right exopo- dite, or only shghtly exceeding it 16 16 (17) Antepenultimate segment of right antenna of male produced at distal end into a blunt point, first segment of right exopo- dite of fifth foot with marked quadrangular hyaline appen- dage Diaptomus birgei Marsh 1894.. Fig. 1179. Diaptomushtrgei,rQ2X&. ^, terminal segment of right antenna. X 191. B, fifth feet. X 109. (Original.) Common in Indiana and has been found in Wisconsin and on Long Island. Lengt
. Fresh-water biology. Freshwater biology. COPEPODA 761 27(32,35) Process much shorter than penultimate segment 28 28(31) Right endopodite of male fifth foot rudimentary 29 29 (30) Lateral spine of second segment of right exopodite of male fifth foot terminal Diaptomus lintoni Forhea i&gs. Found in Yellow- stone Park and in the valley of the Gallatin River, Montana. Fig. 1185. Diaptomus lintoni. .4, filth feet of male. X no. B, terminal segments of right antenna of male. X 220. C, fifth foot of female. X2S8. (Original.). Please note that these images are extracted from scanned page images Stock Photo
RMRDAEFG–. Fresh-water biology. Freshwater biology. COPEPODA 761 27(32,35) Process much shorter than penultimate segment 28 28(31) Right endopodite of male fifth foot rudimentary 29 29 (30) Lateral spine of second segment of right exopodite of male fifth foot terminal Diaptomus lintoni Forhea i&gs. Found in Yellow- stone Park and in the valley of the Gallatin River, Montana. Fig. 1185. Diaptomus lintoni. .4, filth feet of male. X no. B, terminal segments of right antenna of male. X 220. C, fifth foot of female. X2S8. (Original.). Please note that these images are extracted from scanned page images
. Fresh-water biology. Freshwater biology. 770 FRESH-WATER BIOLOGY 60 (57) Second segment of right exopodite of fifth foot of male does not have oblique ridge on posterior surface 61 61 (62) Lateral spine of terminal segment of right exopodite of male fifth foot terminal, endopodites distinctly two-segmented. Diaptomus bakeri Marsh 1907. In the female fifth foot the exopodites are distinctly three-segmented, the endopodites distinctly two-segmented. Found in Cali- fornia. Length of female, 1.27 mm. Length of male, 1.124 mm. Fig. 1203. Diaptomus hakeri. ^, fifth feet of male. X no. 5, fifth foo Stock Photo
RMPFYGR1–. Fresh-water biology. Freshwater biology. 770 FRESH-WATER BIOLOGY 60 (57) Second segment of right exopodite of fifth foot of male does not have oblique ridge on posterior surface 61 61 (62) Lateral spine of terminal segment of right exopodite of male fifth foot terminal, endopodites distinctly two-segmented. Diaptomus bakeri Marsh 1907. In the female fifth foot the exopodites are distinctly three-segmented, the endopodites distinctly two-segmented. Found in Cali- fornia. Length of female, 1.27 mm. Length of male, 1.124 mm. Fig. 1203. Diaptomus hakeri. ^, fifth feet of male. X no. 5, fifth foo
. Fresh-water biology. Freshwater biology. COPEPODA 759 19 (18) Inner process of terminal segment of left exopodite of male fifth foot digitiform, hyaline appendage on internal distal angle of first segment of right exopodite 20 20 (21) Lateral spine of second segment of right exopodite nearly straight, no blunt spine on posterior surface of this segment. Diaptomus tyrelli Poppe 1888. Widely spread in the mountain lakes of the West. Length of female, 1.2 mm. Length of male, 1.15 mm. Fig. 1181. Fifth feet of male Diaptomus tyrelli. X 190. (Original.). 21 (20) A second hyaline appendage on dorsa Stock Photo
RMRDAEFY–. Fresh-water biology. Freshwater biology. COPEPODA 759 19 (18) Inner process of terminal segment of left exopodite of male fifth foot digitiform, hyaline appendage on internal distal angle of first segment of right exopodite 20 20 (21) Lateral spine of second segment of right exopodite nearly straight, no blunt spine on posterior surface of this segment. Diaptomus tyrelli Poppe 1888. Widely spread in the mountain lakes of the West. Length of female, 1.2 mm. Length of male, 1.15 mm. Fig. 1181. Fifth feet of male Diaptomus tyrelli. X 190. (Original.). 21 (20) A second hyaline appendage on dorsa
. Fresh-water biology. Freshwater biology. COPEPODA 761 27(32,35) Process much shorter than penultimate segment 28 28(31) Right endopodite of male fifth foot rudimentary 29 29 (30) Lateral spine of second segment of right exopodite of male fifth foot terminal Diaptomus lintoni Forhea i&gs. Found in Yellow- stone Park and in the valley of the Gallatin River, Montana. Fig. 1185. Diaptomus lintoni. .4, filth feet of male. X no. B, terminal segments of right antenna of male. X 220. C, fifth foot of female. X2S8. (Original.). Please note that these images are extracted from scanned page images Stock Photo
RMPFYGTB–. Fresh-water biology. Freshwater biology. COPEPODA 761 27(32,35) Process much shorter than penultimate segment 28 28(31) Right endopodite of male fifth foot rudimentary 29 29 (30) Lateral spine of second segment of right exopodite of male fifth foot terminal Diaptomus lintoni Forhea i&gs. Found in Yellow- stone Park and in the valley of the Gallatin River, Montana. Fig. 1185. Diaptomus lintoni. .4, filth feet of male. X no. B, terminal segments of right antenna of male. X 220. C, fifth foot of female. X2S8. (Original.). Please note that these images are extracted from scanned page images
. The germ-cell cycle in animals . Cells. Fig. 49. — Stages in the keimbahn of copepods. A—G. Cyclops fuscus var. distinctus. H. Diaptomus coeruleus. I. Cyclops viridis. A. Ectosomes at end of first cleavage spindle. B. Two-cell stage; ectosomes dissolving. C. Old and newly formed ectosomes at end of one of second cleavage spindles. D. Eight-cell stage; ectosomes dissolving in stem-cell. E. Sixteen- to twenty-eight-cell stage. S = cell with, B = cell without, granules. F. One hundred and twelve-cell stage with two primordial germ cells (v) and three en- toderm cells (£). G. Two hundred and for Stock Photo
RMRE0C64–. The germ-cell cycle in animals . Cells. Fig. 49. — Stages in the keimbahn of copepods. A—G. Cyclops fuscus var. distinctus. H. Diaptomus coeruleus. I. Cyclops viridis. A. Ectosomes at end of first cleavage spindle. B. Two-cell stage; ectosomes dissolving. C. Old and newly formed ectosomes at end of one of second cleavage spindles. D. Eight-cell stage; ectosomes dissolving in stem-cell. E. Sixteen- to twenty-eight-cell stage. S = cell with, B = cell without, granules. F. One hundred and twelve-cell stage with two primordial germ cells (v) and three en- toderm cells (£). G. Two hundred and for
. Fresh-water biology. Freshwater biology. 764 FRESH-WATER BIOLOGY 38 (37) Antennal process of male exceeds ultimate segment, antennae reach furca Diaptomus wardi Pearse 1905.. Washington. Length of female, 2.9 mm. Length of male, 1.6 mm. Fig. 1191. Diaptomus wardi, male. A XI73. XII2. uiapiomus warai, male. A, fifth feet. B, terminal segments of right antenna. (After Pearse.) 39 (36) Small. Lateral spine of second segment of right exopodite of male on proximal half of segment, antennae reach beyond furca. . . 40 40 (41) Lateral spine of second segment of right exopodite of male fifth foot sho Stock Photo
RMPFYGRM–. Fresh-water biology. Freshwater biology. 764 FRESH-WATER BIOLOGY 38 (37) Antennal process of male exceeds ultimate segment, antennae reach furca Diaptomus wardi Pearse 1905.. Washington. Length of female, 2.9 mm. Length of male, 1.6 mm. Fig. 1191. Diaptomus wardi, male. A XI73. XII2. uiapiomus warai, male. A, fifth feet. B, terminal segments of right antenna. (After Pearse.) 39 (36) Small. Lateral spine of second segment of right exopodite of male on proximal half of segment, antennae reach beyond furca. . . 40 40 (41) Lateral spine of second segment of right exopodite of male fifth foot sho
. Fresh-water biology. Freshwater biology. 764 FRESH-WATER BIOLOGY 38 (37) Antennal process of male exceeds ultimate segment, antennae reach furca Diaptomus wardi Pearse 1905.. Washington. Length of female, 2.9 mm. Length of male, 1.6 mm. Fig. 1191. Diaptomus wardi, male. A XI73. XII2. uiapiomus warai, male. A, fifth feet. B, terminal segments of right antenna. (After Pearse.) 39 (36) Small. Lateral spine of second segment of right exopodite of male on proximal half of segment, antennae reach beyond furca. . . 40 40 (41) Lateral spine of second segment of right exopodite of male fifth foot sho Stock Photo
RMRDAEEJ–. Fresh-water biology. Freshwater biology. 764 FRESH-WATER BIOLOGY 38 (37) Antennal process of male exceeds ultimate segment, antennae reach furca Diaptomus wardi Pearse 1905.. Washington. Length of female, 2.9 mm. Length of male, 1.6 mm. Fig. 1191. Diaptomus wardi, male. A XI73. XII2. uiapiomus warai, male. A, fifth feet. B, terminal segments of right antenna. (After Pearse.) 39 (36) Small. Lateral spine of second segment of right exopodite of male on proximal half of segment, antennae reach beyond furca. . . 40 40 (41) Lateral spine of second segment of right exopodite of male fifth foot sho
. Fresh-water biology. Freshwater biology. Found in Louisiana. Length of female, 1.4Q mm. Length of male, 1.325 mm. Fig. 1197. Diaptomus conipedatus, male. ^, fifth feet. X 126. 5, terminal segments of right antenna. X 193. (Original.) 52 (so, 51) Terminal hook of right exopodite of fifth foot of male falciform, lateral spine at distal third of segment, second basal seg- ment of right foot broad at distal end with process at external distal angle. Diaptamus sanguineus Forbes 1876.. Mississippi Valley. Occurs in spring, in stagnant pools. Length of female, 1.4 to 2.12 mm. Length of male, i to 2 Stock Photo
RMPFYGRA–. Fresh-water biology. Freshwater biology. Found in Louisiana. Length of female, 1.4Q mm. Length of male, 1.325 mm. Fig. 1197. Diaptomus conipedatus, male. ^, fifth feet. X 126. 5, terminal segments of right antenna. X 193. (Original.) 52 (so, 51) Terminal hook of right exopodite of fifth foot of male falciform, lateral spine at distal third of segment, second basal seg- ment of right foot broad at distal end with process at external distal angle. Diaptamus sanguineus Forbes 1876.. Mississippi Valley. Occurs in spring, in stagnant pools. Length of female, 1.4 to 2.12 mm. Length of male, i to 2
. Fresh-water biology. Freshwater biology. Fig. 1199. Diaptomus stagnalis. B, fifth feet of male. SS (54) I1 male, segments of right fifth foot short and broad, terminal hook long and strongly curved, lateral spine long and straight; in female, dorsal process on fifth cephalothoracic segment, endopodites of fifth feet short and one-segmented. Diaptomus saltillinus Brewer 1898. Found in Nebraska. Length of female, i.j mm. Length of male, 1.25 mm.. Fig. hoc. Diaptomus saltillinus. A, terminal segments of right antenna of male. X 193. B, fifth feet of same. X 126. C, fifth foot of female. X 193. Stock Photo
RMRDA3D9–. Fresh-water biology. Freshwater biology. Fig. 1199. Diaptomus stagnalis. B, fifth feet of male. SS (54) I1 male, segments of right fifth foot short and broad, terminal hook long and strongly curved, lateral spine long and straight; in female, dorsal process on fifth cephalothoracic segment, endopodites of fifth feet short and one-segmented. Diaptomus saltillinus Brewer 1898. Found in Nebraska. Length of female, i.j mm. Length of male, 1.25 mm.. Fig. hoc. Diaptomus saltillinus. A, terminal segments of right antenna of male. X 193. B, fifth feet of same. X 126. C, fifth foot of female. X 193.
. Fresh-water biology. Freshwater biology. COPEPODA 759 19 (18) Inner process of terminal segment of left exopodite of male fifth foot digitiform, hyaline appendage on internal distal angle of first segment of right exopodite 20 20 (21) Lateral spine of second segment of right exopodite nearly straight, no blunt spine on posterior surface of this segment. Diaptomus tyrelli Poppe 1888. Widely spread in the mountain lakes of the West. Length of female, 1.2 mm. Length of male, 1.15 mm. Fig. 1181. Fifth feet of male Diaptomus tyrelli. X 190. (Original.). 21 (20) A second hyaline appendage on dorsa Stock Photo
RMPFYGTR–. Fresh-water biology. Freshwater biology. COPEPODA 759 19 (18) Inner process of terminal segment of left exopodite of male fifth foot digitiform, hyaline appendage on internal distal angle of first segment of right exopodite 20 20 (21) Lateral spine of second segment of right exopodite nearly straight, no blunt spine on posterior surface of this segment. Diaptomus tyrelli Poppe 1888. Widely spread in the mountain lakes of the West. Length of female, 1.2 mm. Length of male, 1.15 mm. Fig. 1181. Fifth feet of male Diaptomus tyrelli. X 190. (Original.). 21 (20) A second hyaline appendage on dorsa
. Fresh-water biology. Freshwater biology. Found in Louisiana. Length of female, 1.4Q mm. Length of male, 1.325 mm. Fig. 1197. Diaptomus conipedatus, male. ^, fifth feet. X 126. 5, terminal segments of right antenna. X 193. (Original.) 52 (so, 51) Terminal hook of right exopodite of fifth foot of male falciform, lateral spine at distal third of segment, second basal seg- ment of right foot broad at distal end with process at external distal angle. Diaptamus sanguineus Forbes 1876.. Mississippi Valley. Occurs in spring, in stagnant pools. Length of female, 1.4 to 2.12 mm. Length of male, i to 2 Stock Photo
RMRDA3DE–. Fresh-water biology. Freshwater biology. Found in Louisiana. Length of female, 1.4Q mm. Length of male, 1.325 mm. Fig. 1197. Diaptomus conipedatus, male. ^, fifth feet. X 126. 5, terminal segments of right antenna. X 193. (Original.) 52 (so, 51) Terminal hook of right exopodite of fifth foot of male falciform, lateral spine at distal third of segment, second basal seg- ment of right foot broad at distal end with process at external distal angle. Diaptamus sanguineus Forbes 1876.. Mississippi Valley. Occurs in spring, in stagnant pools. Length of female, 1.4 to 2.12 mm. Length of male, i to 2
. Fresh-water biology. Freshwater biology. Fig. 1199. Diaptomus stagnalis. B, fifth feet of male. SS (54) I1 male, segments of right fifth foot short and broad, terminal hook long and strongly curved, lateral spine long and straight; in female, dorsal process on fifth cephalothoracic segment, endopodites of fifth feet short and one-segmented. Diaptomus saltillinus Brewer 1898. Found in Nebraska. Length of female, i.j mm. Length of male, 1.25 mm.. Fig. hoc. Diaptomus saltillinus. A, terminal segments of right antenna of male. X 193. B, fifth feet of same. X 126. C, fifth foot of female. X 193. Stock Photo
RMPFYGR4–. Fresh-water biology. Freshwater biology. Fig. 1199. Diaptomus stagnalis. B, fifth feet of male. SS (54) I1 male, segments of right fifth foot short and broad, terminal hook long and strongly curved, lateral spine long and straight; in female, dorsal process on fifth cephalothoracic segment, endopodites of fifth feet short and one-segmented. Diaptomus saltillinus Brewer 1898. Found in Nebraska. Length of female, i.j mm. Length of male, 1.25 mm.. Fig. hoc. Diaptomus saltillinus. A, terminal segments of right antenna of male. X 193. B, fifth feet of same. X 126. C, fifth foot of female. X 193.
. Fresh-water biology. Freshwater biology. 772 FRESH-WATER BIOLOGY 67 (70) First segment of exopodite of male fifth foot without hyahne appendage 68 68 (69) Right endopodite of male fifth foot triangular in form, first ab- dominal segment of female has digitiform process on right posterior border Diaptomus nudus Marsh 1904.. Found in lakes near Pike's Peak, Colorado. Length of female, 1.132 mm. Length of male, 1.115 mm. Fig. 1207. Diapiomus nudus. A, fifth feet of male. X 105. B, abdomen of female. X 105. (Original.) 69 (68) In male fifth foot, second basal segment with hyaline appendage on in Stock Photo
RMRDA3D5–. Fresh-water biology. Freshwater biology. 772 FRESH-WATER BIOLOGY 67 (70) First segment of exopodite of male fifth foot without hyahne appendage 68 68 (69) Right endopodite of male fifth foot triangular in form, first ab- dominal segment of female has digitiform process on right posterior border Diaptomus nudus Marsh 1904.. Found in lakes near Pike's Peak, Colorado. Length of female, 1.132 mm. Length of male, 1.115 mm. Fig. 1207. Diapiomus nudus. A, fifth feet of male. X 105. B, abdomen of female. X 105. (Original.) 69 (68) In male fifth foot, second basal segment with hyaline appendage on in
. Fresh-water biology. Freshwater biology. 766 FRESH-WATER BIOLOGY 45 (44) Process slightly exceeds in length penultimate segment, second basal segment of right fifth foot of male not dilated on inner margin, endopodite of left fifth foot one-seg- mented. Diaptomus franciscanus Lilljeborg 1889. Found only near San Fran- dsco. Length of female, 2.3 mm, Length of male, 2 mm. Fig. 1195. Diaptomus franciscanus, male. A, terminal segments of right antenna. X 200. B, fifth feet. X 200. (After De Guerne and Richard.) 46 (43) Process shorter than penultimate segment 47 47 (66) One or both terminal pro Stock Photo
RMPFYGRE–. Fresh-water biology. Freshwater biology. 766 FRESH-WATER BIOLOGY 45 (44) Process slightly exceeds in length penultimate segment, second basal segment of right fifth foot of male not dilated on inner margin, endopodite of left fifth foot one-seg- mented. Diaptomus franciscanus Lilljeborg 1889. Found only near San Fran- dsco. Length of female, 2.3 mm, Length of male, 2 mm. Fig. 1195. Diaptomus franciscanus, male. A, terminal segments of right antenna. X 200. B, fifth feet. X 200. (After De Guerne and Richard.) 46 (43) Process shorter than penultimate segment 47 47 (66) One or both terminal pro
. Fresh-water biology. Freshwater biology. 766 FRESH-WATER BIOLOGY 45 (44) Process slightly exceeds in length penultimate segment, second basal segment of right fifth foot of male not dilated on inner margin, endopodite of left fifth foot one-seg- mented. Diaptomus franciscanus Lilljeborg 1889. Found only near San Fran- dsco. Length of female, 2.3 mm, Length of male, 2 mm. Fig. 1195. Diaptomus franciscanus, male. A, terminal segments of right antenna. X 200. B, fifth feet. X 200. (After De Guerne and Richard.) 46 (43) Process shorter than penultimate segment 47 47 (66) One or both terminal pro Stock Photo
RMRDA3DJ–. Fresh-water biology. Freshwater biology. 766 FRESH-WATER BIOLOGY 45 (44) Process slightly exceeds in length penultimate segment, second basal segment of right fifth foot of male not dilated on inner margin, endopodite of left fifth foot one-seg- mented. Diaptomus franciscanus Lilljeborg 1889. Found only near San Fran- dsco. Length of female, 2.3 mm, Length of male, 2 mm. Fig. 1195. Diaptomus franciscanus, male. A, terminal segments of right antenna. X 200. B, fifth feet. X 200. (After De Guerne and Richard.) 46 (43) Process shorter than penultimate segment 47 47 (66) One or both terminal pro
. Fresh-water biology. Freshwater biology. 766 FRESH-WATER BIOLOGY 45 (44) Process slightly exceeds in length penultimate segment, second basal segment of right fifth foot of male not dilated on inner margin, endopodite of left fifth foot one-seg- mented. Diaptomus franciscanus Lilljeborg 1889. Found only near San Fran- dsco. Length of female, 2.3 mm, Length of male, 2 mm. Fig. 1195. Diaptomus franciscanus, male. A, terminal segments of right antenna. X 200. B, fifth feet. X 200. (After De Guerne and Richard.) 46 (43) Process shorter than penultimate segment 47 47 (66) One or both terminal pro Stock Photo
RMPFYGRG–. Fresh-water biology. Freshwater biology. 766 FRESH-WATER BIOLOGY 45 (44) Process slightly exceeds in length penultimate segment, second basal segment of right fifth foot of male not dilated on inner margin, endopodite of left fifth foot one-seg- mented. Diaptomus franciscanus Lilljeborg 1889. Found only near San Fran- dsco. Length of female, 2.3 mm, Length of male, 2 mm. Fig. 1195. Diaptomus franciscanus, male. A, terminal segments of right antenna. X 200. B, fifth feet. X 200. (After De Guerne and Richard.) 46 (43) Process shorter than penultimate segment 47 47 (66) One or both terminal pro
. Fresh-water biology. Freshwater biology. 766 FRESH-WATER BIOLOGY 45 (44) Process slightly exceeds in length penultimate segment, second basal segment of right fifth foot of male not dilated on inner margin, endopodite of left fifth foot one-seg- mented. Diaptomus franciscanus Lilljeborg 1889. Found only near San Fran- dsco. Length of female, 2.3 mm, Length of male, 2 mm. Fig. 1195. Diaptomus franciscanus, male. A, terminal segments of right antenna. X 200. B, fifth feet. X 200. (After De Guerne and Richard.) 46 (43) Process shorter than penultimate segment 47 47 (66) One or both terminal pro Stock Photo
RMRDA3DN–. Fresh-water biology. Freshwater biology. 766 FRESH-WATER BIOLOGY 45 (44) Process slightly exceeds in length penultimate segment, second basal segment of right fifth foot of male not dilated on inner margin, endopodite of left fifth foot one-seg- mented. Diaptomus franciscanus Lilljeborg 1889. Found only near San Fran- dsco. Length of female, 2.3 mm, Length of male, 2 mm. Fig. 1195. Diaptomus franciscanus, male. A, terminal segments of right antenna. X 200. B, fifth feet. X 200. (After De Guerne and Richard.) 46 (43) Process shorter than penultimate segment 47 47 (66) One or both terminal pro
. Fresh-water biology. Freshwater biology. 772 FRESH-WATER BIOLOGY 67 (70) First segment of exopodite of male fifth foot without hyahne appendage 68 68 (69) Right endopodite of male fifth foot triangular in form, first ab- dominal segment of female has digitiform process on right posterior border Diaptomus nudus Marsh 1904.. Found in lakes near Pike's Peak, Colorado. Length of female, 1.132 mm. Length of male, 1.115 mm. Fig. 1207. Diapiomus nudus. A, fifth feet of male. X 105. B, abdomen of female. X 105. (Original.) 69 (68) In male fifth foot, second basal segment with hyaline appendage on in Stock Photo
RMPFYGR0–. Fresh-water biology. Freshwater biology. 772 FRESH-WATER BIOLOGY 67 (70) First segment of exopodite of male fifth foot without hyahne appendage 68 68 (69) Right endopodite of male fifth foot triangular in form, first ab- dominal segment of female has digitiform process on right posterior border Diaptomus nudus Marsh 1904.. Found in lakes near Pike's Peak, Colorado. Length of female, 1.132 mm. Length of male, 1.115 mm. Fig. 1207. Diapiomus nudus. A, fifth feet of male. X 105. B, abdomen of female. X 105. (Original.) 69 (68) In male fifth foot, second basal segment with hyaline appendage on in
. Fresh-water biology. Freshwater biology. 30 (29) Lateral spine of second segment of right exopodite of male fifth foot near the proximal end. Diaptomus trybomi Lilljeborg 1889.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ] Stock Photo
RMRDAEFD–. Fresh-water biology. Freshwater biology. 30 (29) Lateral spine of second segment of right exopodite of male fifth foot near the proximal end. Diaptomus trybomi Lilljeborg 1889.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
46438 Diaptomus caeruleus, Female Stock Photo
RMGK45PJ–46438 Diaptomus caeruleus, Female
. Fresh-water biology. Freshwater biology. 30 (29) Lateral spine of second segment of right exopodite of male fifth foot near the proximal end. Diaptomus trybomi Lilljeborg 1889.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ] Stock Photo
RMRDAEF8–. Fresh-water biology. Freshwater biology. 30 (29) Lateral spine of second segment of right exopodite of male fifth foot near the proximal end. Diaptomus trybomi Lilljeborg 1889.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
. Fresh-water biology. Freshwater biology. Has been found only in California and Nebraska. Length of female, 4 mm. Length of male, 3.5 mm. Fig. 1194. Diaptomus eiseni, male. A, fifth feet. X 38. B, terminal segments of right antenna. X 133. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [e Stock Photo
RMRDA3DR–. Fresh-water biology. Freshwater biology. Has been found only in California and Nebraska. Length of female, 4 mm. Length of male, 3.5 mm. Fig. 1194. Diaptomus eiseni, male. A, fifth feet. X 38. B, terminal segments of right antenna. X 133. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [e
Page 1 of 1